Ext.define('App.main.view.MainViewport', {
    extend: 'Ext.container.Viewport',
    alias: ['widget.MainViewport'],
    requires: [
        'App.main.view.North',
        'App.main.view.NavCenter'
    ],
    layout: 'border',
    items: [
        {
            xtype: 'North',
            region: 'north',
            height: 100
        }, {
            xtype: 'NavCenter',
            region: 'center'
        }
    ]
})